21965760

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:315

約数の個数: 168

約数和(自身を含む): 78455520

約数和(自身を除く): 56489760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 64, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 192, 232, 240, 261, 263, 288, 290, 320, 348, 360, 435, 464, 480, 522, 526, 576, 580, 696, 720, 789, 870, 928, 960, 1044, 1052, 1160, 1305, 1315, 1392, 1440, 1578, 1740, 1856, 2088, 2104, 2320, 2367, 2610, 2630, 2784, 2880, 3156, 3480, 3945, 4176, 4208, 4640, 4734, 5220, 5260, 5568, 6312, 6960, 7627, 7890, 8352, 8416, 9280, 9468, 10440, 10520, 11835, 12624, 13920, 15254, 15780, 16704, 16832, 18936, 20880, 21040, 22881, 23670, 25248, 27840, 30508, 31560, 37872, 38135, 41760, 42080, 45762, 47340, 50496, 61016, 63120, 68643, 75744, 76270, 83520, 84160, 91524, 94680, 114405, 122032, 126240, 137286, 151488, 152540, 183048, 189360, 228810, 244064, 252480, 274572, 305080, 343215, 366096, 378720, 457620, 488128, 549144, 610160, 686430, 732192, 757440, 915240, 1098288, 1220320, 1372860, 1464384, 1830480, 2196576, 2440640, 2745720, 3660960, 4393152, 5491440, 7321920, 10982880, 21965760]

約数ペア:

[(1, 21965760), (2, 10982880), (3, 7321920), (4, 5491440), (5, 4393152), (6, 3660960), (8, 2745720), (9, 2440640), (10, 2196576), (12, 1830480), (15, 1464384), (16, 1372860), (18, 1220320), (20, 1098288), (24, 915240), (29, 757440), (30, 732192), (32, 686430), (36, 610160), (40, 549144), (45, 488128), (48, 457620), (58, 378720), (60, 366096), (64, 343215), (72, 305080), (80, 274572), (87, 252480), (90, 244064), (96, 228810), (116, 189360), (120, 183048), (144, 152540), (145, 151488), (160, 137286), (174, 126240), (180, 122032), (192, 114405), (232, 94680), (240, 91524), (261, 84160), (263, 83520), (288, 76270), (290, 75744), (320, 68643), (348, 63120), (360, 61016), (435, 50496), (464, 47340), (480, 45762), (522, 42080), (526, 41760), (576, 38135), (580, 37872), (696, 31560), (720, 30508), (789, 27840), (870, 25248), (928, 23670), (960, 22881), (1044, 21040), (1052, 20880), (1160, 18936), (1305, 16832), (1315, 16704), (1392, 15780), (1440, 15254), (1578, 13920), (1740, 12624), (1856, 11835), (2088, 10520), (2104, 10440), (2320, 9468), (2367, 9280), (2610, 8416), (2630, 8352), (2784, 7890), (2880, 7627), (3156, 6960), (3480, 6312), (3945, 5568), (4176, 5260), (4208, 5220), (4640, 4734)]